Scary as hell gentlemen. Got it today. It's dark, amazingly dark. You'll be constantly performing some gay little tango of swapping your flashlight for biggest gun you've got. Imps are fast too. They crawl around like dogs. Still on the first level so I haven't encountered pink demons or anything like that yet. I've got a AMD 2500+ 1 Gig of Ram ATI 9800 Pro All on a NForce2 motherboard. and I'm running the game on high details, 1024x768. Looks super and is pretty smooth. Maybe give you an idea of how your box might run it. Doom3 is goo so far. Might be away from the forums for awhile. Got demons to slay and all.